Hey community — I’m looking to connect with a developer who has hands-on experience building custom cards using HubSpot’s CRM UI Extensions framework (React-based).
We’re redesigning our Deal page and have three custom cards fully spec’d and ready to build:
A dynamic Stage Workspace card with tier-conditional checklist rendering, append-only narrative fields, file upload modals, and hard gate logic
A Program Builder tab that surfaces program selections and ACV calculation output from existing deal properties
A Document Library tab with template access and a submission workflow including date validation
Full documentation, an HTML mockup, and a property list are ready to hand off on day one. This is a build engagement, not a discovery engagement.
What I’m looking for:
Demonstrated experience with HubSpot CRM UI Extensions specifically — not just HubSpot admin or general API work
Comfort working from a detailed spec without hand-holding
Available for an estimated 8–10 day build
If you’ve built custom cards on the HubSpot developer platform and are open to contract work, I’d love to hear from you. Drop a comment or send me a DM. Thank you!
Dealbuilder syncronize with HubSpot data like deal with associated contact and associated company with some of the properties firstname, lastname, email, phone, object IDs and custom properties.
All of these data get from Hubspot when we click at create deal link at HubSpot card and Project is created at dealbuilder.
5-star rating in HubSpot Solutions Directory: HubSpot Marketplace
Hi @BWoodard12, this is exactly the kind of advanced HubSpot work we handle regularly.
We’ve built multiple custom CRM UI Extensions (React-based), including dynamic deal-stage workspaces, gated workflows, and custom cards that tightly align with business logic, so your use case fits right in our wheelhouse.
We’re a HubSpot Certified Diamond Partner with 10+ years of experience and a team of 150+ certified experts working deeply across CRM architecture, UI extensions, and automation. We’re very comfortable working off detailed specs and jumping straight into build mode without hand-holding.
Your scope, especially the Stage Workspace logic, Program Builder calculations, and Document Library workflows, is something we can execute cleanly within your 8–10 day timeline.
Happy to review your documentation and share relevant examples of similar custom card builds.
Would you be open to a quick 15–20 min call to align on access, timelines, and any edge cases before kickoff?
I am interested in this contract role. I have built several custom CRM cards and ui extensions and even a custom setting pages also in the HubSpot. Let’s meet once then I can sharey screen and I will show you also what I have build and what I can build more so yes I am very much confident about you mentioned you need. I am holding 10.4 years of HubSpot experience and worked with more than 4 HubSpot partner agencies as HubSpot Architect.
